5.1.4.c - The general case
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Practice Questions
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Define internal energy in your own words.
💡 Hint: Consider all the forms of energy present in a system.
In the first law of thermodynamics, what does the term 'isolated system' mean?
💡 Hint: Think about what happens to the energy in such systems.
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Interactive Quizzes
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What does the internal energy of a system represent?
💡 Hint: Think about what makes up the energy of a system.
True or False: In an isolated system, energy can be added or removed.
💡 Hint: Consider what isolated means in context.
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Challenge Problems
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A closed system absorbs 20 kJ of heat and does 5 kJ of work. What is the change in internal energy?
💡 Hint: Use the basic formula we discussed earlier.
Explain how energy conservation plays out in a chemical reaction in real-world applications like engines.
💡 Hint: Link practical applications like car engines to our discussions on energy.
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